I recently bought Mi ANC Type C earphones and when using stock Music app it makes cracking noises when locking and unlocking device. Sometimes it even gets stuck with that noise and it doesn't stop until I plug out the earphones. I tried it both with and without sound enhancer and earphone model selected. This only happens with stock music app. I tried VLC, Aimp and Rocket Player and they all work normally. Also, stock app works with bluetooth earphones and 3.5mm headphones with stock 3.5mm to type c dongle.
